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RetireControlUnitStatistics now reports extra information about the ROB and the avg/maximum number of entries consumed over the entire simulation. Example: Retire Control Unit - number of cycles where we saw N instructions retired: [# retired], [# cycles] 0, 109 (17.9%) 1, 102 (16.7%) 2, 399 (65.4%) Total ROB Entries: 64 Max Used ROB Entries: 35 ( 54.7% ) Average Used ROB Entries per cy: 32 ( 50.0% ) Documentation in llvm/docs/CommandGuide/llvmn-mca.rst has been updated to reflect this change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@347493 91177308-0d34-0410-b5e6-96231b3b80d8